input: touchscreen: stm: fix memory leak

Free memory allocated by calls to getMSFrame3 and getSSFrame3.

Bug: 169240052
Signed-off-by: Steve Pfetsch <spfetsch@google.com>
Change-Id: I204502f08e702417b8879430bd6c414aef2275f5
diff --git a/fts.c b/fts.c
index 8ba47f8..b9292e2 100644
--- a/fts.c
+++ b/fts.c
@@ -4206,6 +4206,7 @@
 			}
 		}
 	}
+	kfree(ms_frame.node_data);
 }
 
 static void fts_populate_self_channel(struct fts_ts_info *info,
@@ -4247,6 +4248,8 @@
 		memcpy(&self_strength->data[2 * self_strength->tx_size],
 		       ss_frame.sense_data, 2 * self_strength->rx_size);
 	}
+	kfree(ss_frame.force_data);
+	kfree(ss_frame.sense_data);
 }
 
 static void fts_populate_frame(struct fts_ts_info *info,